NSES Content Standard F
Science in Personal and Social Perspectives: Types of resources Grades K-4, page 140 The supply of many resources is limited. If used, resources can be extended
through recycling and decreased use.
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Benchmark 7E Human Society: Political
and Economic Systems
Grades 3-5, page 169
There are not enough resources to satisfy all of the desires of all
people, and so there has to be some way of deciding who gets what.
Benchmark 8B The Designed World: Materials
and Manufacturing
Grades K-2, page 188
Some materials can be used over again.
Benchmark 8B The Designed World: Materials
and Manufacturing
Grades 3-5, page 189
Discarded products contribute to the problem of waste disposal. Sometimes
it is possible to use the materials in them to make new products, but materials
differ widely in the ease with which they can be recycled.